Finding the Fourth Proportional to 2,561.93, 3,535.53 and 1,442.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.93 : 3,535.53 = 1,442.91 : x
2. Step 2: Convert to fraction form
   2,561.93/3,535.53 = 1,442.91/x
3. Step 3: Cross multiply
   2,561.93x = 3,535.53 × 1,442.91
4. Step 4: Simplify right side
   2,561.93x = 5,101,451.59
5. Step 5: Solve for x
   x = 5,101,451.59/2,561.93
6. Step 6: Final answer
   x = 1,991.25